package com.sdsy.blockchaintrainingback.config;

import com.sdsy.blockchaintrainingback.enums.WebFilterOrderEnum;
import com.sdsy.blockchaintrainingback.filter.AuthFilter;
import jakarta.servlet.Filter;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * @Description TODO
 * @Author linzili
 * @Date 2023/9/26 10:00
 * @Version 1.0
 */
@Configuration
@EnableConfigurationProperties
public class WebAutoConfiguration implements WebMvcConfigurer {

    // ========== Filter 相关 ==========

    /**
     * 创建 CorsFilter Bean，解决跨域问题
     */
    @Bean
    public FilterRegistrationBean<CorsFilter> corsFilterBean() {
        // 创建 CorsConfiguration 对象
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        config.addAllowedOriginPattern("*"); // 设置访问源地址
        config.addAllowedHeader("*"); // 设置访问源请求头
        config.addAllowedMethod("*"); // 设置访问源请求方法
        // 创建 UrlBasedCorsConfigurationSource 对象
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", config); // 对接口配置跨域设置
        return createFilterBean(new CorsFilter(source), WebFilterOrderEnum.CORS_FILTER);
    }


    public static <T extends Filter> FilterRegistrationBean<T> createFilterBean(T filter, Integer order) {
        FilterRegistrationBean<T> bean = new FilterRegistrationBean<>(filter);
        bean.setOrder(order);
        return bean;
    }


    /**
     * Add Spring MVC lifecycle interceptors for pre- and post-processing of
     * controller method invocations and resource handler requests.
     * Interceptors can be registered to apply to all requests or be limited
     * to a subset of URL patterns.
     *
     * @param registry
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new AuthFilter())
                .addPathPatterns("/**")
                .excludePathPatterns("/auth/login")
                .order(WebFilterOrderEnum.TRACE_FILTER);

    }
}
